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MMLU-Pro / 9283 / Astronomers have found that many stellar objects contain hydrogen atoms that…

Problem

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question

Astronomers have found that many stellar objects contain hydrogen atoms that emit photons. Find the wavelength of this radiation and express the value in centimeters (the conventional unit used by astronomers to measure radio photon spectra) if the approximate value for the frequency of theemmittedphotons is 1.42 × 10^9 Hz.

category

physics

options

  1. 0.021 cm
  2. 0.0021 cm
  3. 0.21 cm
  4. 2.1 cm
  5. 210 cm
  6. 2100 cm
  7. 21 cm
  8. 1.42 cm
  9. 142 cm
  10. 42 cm

src

stemez-Physics

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